public BTP(NitroFile file, BMD model)
{
this.m_File = file;
this.m_FileName = file.m_Name;
this.m_Model = model;
m_NumFrames = m_File.Read16(0x00);
m_NumTextures = m_File.Read16(0x02);
m_TextureHeadersOffset = m_File.Read32(0x04);
m_TextureNames = new List<string>();
m_NumPalettes = m_File.Read16(0x08);
m_PaletteHeadersOffset = m_File.Read32(0x0C);
m_PaletteNames = new List<string>();
m_FrameChangesOffset = m_File.Read32(0x10);
m_FrameTextureIDsOffset = m_File.Read32(0x14);
m_FramePaletteIDsOffset = m_File.Read32(0x18);
m_NumMaterials = m_File.Read16(0x1C);
m_MaterialHeadersOffset = m_File.Read32(0x20);
m_MaterialNames = new List<string>();
for (int i = 0; i < m_NumTextures; i++)
{
m_TextureNames.Add(m_File.ReadString(m_File.Read32(m_TextureHeadersOffset + 0x04 + (uint)(i * 8)), 0));
}
for (int i = 0; i < m_NumPalettes; i++)
{
m_PaletteNames.Add(m_File.ReadString(m_File.Read32(m_PaletteHeadersOffset + 0x04 + (uint)(i * 8)), 0));
}
// Read in the frames for each material
m_MaterialData = new Dictionary<string, BTPMaterialData>();
m_Frames = new List<BTPFrameData>();
for (int i = 0; i < m_NumMaterials; i++)
{
m_MaterialNames.Add(m_File.ReadString(m_File.Read32(m_MaterialHeadersOffset + 0x04 + (uint)(i * 12)), 0));
ushort matFrameChanges = m_File.Read16(m_MaterialHeadersOffset + 0x08 + (uint)(i * 12));
ushort startOffsetFrameChanges = m_File.Read16(m_MaterialHeadersOffset + 0x0A + (uint)(i * 12));
int matNumFrames = 0;
for (int j = 0; j < matFrameChanges; j++)
{
ushort frameNum = m_File.Read16((uint)(m_FrameChangesOffset + (startOffsetFrameChanges * 2) + (j * 2)));
// If not the last frame in the sequence, length = (next frame number - current frame number) else,
// length = (number of frames in sequence - current frame number)
int nextFrameNum = (j != (matFrameChanges - 1)) ?
(int)m_File.Read16((uint)(m_FrameChangesOffset + (startOffsetFrameChanges * 2) + ((j + 1) * 2))) : -1;
int length = (nextFrameNum != -1) ? (nextFrameNum - frameNum) : (m_NumFrames - frameNum);
ushort texID = m_File.Read16((uint)(m_FrameTextureIDsOffset + (startOffsetFrameChanges * 2) + (j * 2)));
ushort palID = m_File.Read16((uint)(m_FramePaletteIDsOffset + (startOffsetFrameChanges * 2) + (j * 2)));
AddFrame(matNumFrames, m_Frames.Count, texID, palID, length);
matNumFrames += length;
}
BTPMaterialData matData = new BTPMaterialData(m_MaterialNames[i], matFrameChanges, startOffsetFrameChanges, matNumFrames);
m_MaterialData.Add(m_MaterialNames[i], matData);
}
}
public void BackSpace(NitroFile bca, uint addr, uint len, ref BCAOffsetData offs, bool forAlignment = false)
{
bca.AddSpace(addr, (uint)-len);
uint oldRotOffset = offs.rotOffset;
uint oldPosOffset = offs.posOffset;
uint oldAnimOffset = offs.animOffset;
if (addr <= offs.scaleOffset)
{
offs.scaleOffset -= len;
}
if (addr <= offs.rotOffset)
{
offs.rotOffset -= len;
}
if (addr <= offs.posOffset)
{
offs.posOffset -= len;
}
if (addr <= offs.animOffset)
{
offs.animOffset -= len;
}
bca.Write32(0x08, offs.scaleOffset);
bca.Write32(0x0c, offs.rotOffset);
bca.Write32(0x10, offs.posOffset);
bca.Write32(0x14, offs.animOffset);
if (forAlignment)
{
return;
}
uint trTypeIndex;
if (addr > offs.scaleOffset && addr <= oldRotOffset)
{
trTypeIndex = 0;
}
else if (addr > offs.rotOffset && addr <= oldPosOffset)
{
trTypeIndex = 1;
}
else if (addr > offs.posOffset && addr <= oldAnimOffset)
{
trTypeIndex = 2;
}
else
{
return;
}
uint dataOffset, unitSize;
offs.GetDataOffsetAndSize(trTypeIndex, out dataOffset, out unitSize);
uint startSubAt = (addr - dataOffset) / unitSize;
uint valToSub = len / unitSize;
uint numBones = bca.Read16(0x00);
for (uint i = 0; i < numBones; ++i)
{
for (uint j = 0; j < 3; ++j)
{
uint offset = offs.animOffset + 0x24 * i + 4 * (3 * trTypeIndex + j) + 2;
uint temp = bca.Read16(offset);
if (temp >= startSubAt)
{
bca.Write16(offset, (ushort)(temp - valToSub));
}
}
}
}
public void Optimise(NitroFile bca)
{
uint numBones = bca.Read16(0x00);
uint numFrames = bca.Read16(0x02);
BCAOffsetData offs = new BCAOffsetData
{
scaleOffset = bca.Read32(0x08),
rotOffset = bca.Read32(0x0c),
posOffset = bca.Read32(0x10),
animOffset = bca.Read32(0x14)
};
//Pass 1: The constant value pass
if (numFrames > 1)
{
for (uint i = 0; i < numBones; ++i)
{
for (uint j = 0; j < 9; ++j)
{
if (bca.Read8(offs.animOffset + 0x24 * i + 4 * j + 1) == 0)
{
continue;
}
uint dataOffset, unitSize;
offs.GetDataOffsetAndSize(j / 3, out dataOffset, out unitSize);
bool interped = bca.Read8(offs.animOffset + 0x24 * i + 4 * j + 0) != 0;
uint firstValID = bca.Read16(offs.animOffset + 0x24 * i + 4 * j + 2);
uint numVals = interped ?
numFrames / 2 + 1 :
numFrames;
uint[] vals = new uint[numVals];
for (uint k = 0; k < numVals; ++k)
{
vals[k] = bca.ReadVar(dataOffset + (firstValID + k) * unitSize, unitSize);
}
if (!Array.Exists(vals, x => x != vals[0])) //They're all the same.
{
uint addr = dataOffset + (firstValID + numVals) * unitSize;
BackSpace(bca, addr, (numVals - 1) * unitSize, ref offs);
bca.Write16(offs.animOffset + 0x24 * i + 4 * j + 0, 0x0000);
continue;
}
if (interped)
{
continue;
}
//Pass 2: The interpolation pass
bool shouldInterp = true;
int[] valInts;
if (unitSize == 2)
{
valInts = Array.ConvertAll(vals, x => x >= 0x8000 ? (int)(x | 0xffff0000) : (int)x);
}
else
{
valInts = Array.ConvertAll(vals, x => (int)x);
}
for (int k = 0; k < numVals - 2; k += 2)
{
if (Math.Abs(valInts[k] - 2 * valInts[k + 1] + valInts[k + 2]) > 1)
{
shouldInterp = false;
}
}
if (!shouldInterp)
{
continue;
}
for (uint k = 0; k < numVals; k += 2)
{
bca.WriteVar(dataOffset + (firstValID + k / 2) * unitSize, unitSize,
bca.ReadVar(dataOffset + (firstValID + k) * unitSize, unitSize));
}
if (numVals % 2 == 0) //can't interpolate on last frame even if that frame is odd
{
bca.WriteVar(dataOffset + (firstValID + numVals / 2) * unitSize, unitSize,
bca.ReadVar(dataOffset + (firstValID + numVals - 1) * unitSize, unitSize));
}
bca.Write8(offs.animOffset + 0x24 * i + 4 * j + 0, 1);
BackSpace(bca, dataOffset + (firstValID + numVals) * unitSize,
(numVals - 1) / 2 * unitSize, ref offs);
}
}
}
//Pass 3: The share equal data pass.
for (uint trID = 0; trID < 3; ++trID)
{
uint dataOffset, unitSize;
offs.GetDataOffsetAndSize(trID, out dataOffset, out unitSize);
BCAEntryToSort[] bcaEntries = new BCAEntryToSort[3 * numBones];
for (uint i = 0; i < numBones; ++i)
{
for (uint j = 0; j < 3; ++j)
{
bool constant = bca.Read8(offs.animOffset + 0x24 * i + 4 * (3 * trID + j) + 1) == 0;
bool interped = bca.Read8(offs.animOffset + 0x24 * i + 4 * (3 * trID + j) + 0) != 0;
uint firstValID = bca.Read16(offs.animOffset + 0x24 * i + 4 * (3 * trID + j) + 2);
uint numVals = constant ? 1 : interped ?
numFrames / 2 + 1 :
numFrames;
bcaEntries[3 * i + j].boneID = i;
bcaEntries[3 * i + j].axisID = j;
bcaEntries[3 * i + j].data = new uint[numVals];
for (uint k = 0; k < numVals; ++k)
{
bcaEntries[3 * i + j].data[k] =
bca.ReadVar(dataOffset + (firstValID + k) * unitSize, unitSize);
}
}
}
BCAEntryToSort[][] sortedEnts = bcaEntries.GroupBy(x => x.data, new UintArrEqualityComparer()).
Select(g => g.ToArray()).
ToArray();
foreach (BCAEntryToSort[] entArr in sortedEnts)
{
uint boneID = entArr[0].boneID;
uint axisID = entArr[0].axisID;
for (int i = 1; i < entArr.Length; ++i) //Using the 1st for reference; skip it
{
bool constant = bca.Read8(offs.animOffset + 0x24 * entArr[i].boneID +
4 * (3 * trID + entArr[i].axisID) + 1) == 0;
bool interped = bca.Read8(offs.animOffset + 0x24 * entArr[i].boneID +
4 * (3 * trID + entArr[i].axisID) + 0) != 0;
uint firstValID = bca.Read16(offs.animOffset + 0x24 * entArr[i].boneID +
4 * (3 * trID + entArr[i].axisID) + 2);
uint numVals = constant ? 1 : interped ?
numFrames / 2 + 1 :
numFrames;
uint sameValID = bca.Read16(offs.animOffset + 0x24 * boneID +
4 * (3 * trID + axisID) + 2);
if (firstValID != sameValID) //Avoid deleting entries when they are already shared
{
bca.Write16(offs.animOffset + 0x24 * entArr[i].boneID +
4 * (3 * trID + entArr[i].axisID) + 2, (ushort)sameValID);
BackSpace(bca, dataOffset + (firstValID + numVals) * unitSize,
numVals * unitSize, ref offs);
}
}
}
}
if ((offs.posOffset - offs.rotOffset) % 4 != 0)
{
BackSpace(bca, offs.posOffset, 0xfffffffe, ref offs, true);
}
}
public BTP(NitroFile file, BMD model)
{
this.m_File = file;
this.m_FileName = file.m_Name;
this.m_Model = model;
m_NumFrames = m_File.Read16(0x00);
m_NumTextures = m_File.Read16(0x02);
m_TextureHeadersOffset = m_File.Read32(0x04);
m_TextureNames = new List <string>();
m_NumPalettes = m_File.Read16(0x08);
m_PaletteHeadersOffset = m_File.Read32(0x0C);
m_PaletteNames = new List <string>();
m_FrameChangesOffset = m_File.Read32(0x10);
m_FrameTextureIDsOffset = m_File.Read32(0x14);
m_FramePaletteIDsOffset = m_File.Read32(0x18);
m_NumMaterials = m_File.Read16(0x1C);
m_MaterialHeadersOffset = m_File.Read32(0x20);
m_MaterialNames = new List <string>();
for (int i = 0; i < m_NumTextures; i++)
{
m_TextureNames.Add(m_File.ReadString(m_File.Read32(m_TextureHeadersOffset + 0x04 + (uint)(i * 8)), 0));
}
for (int i = 0; i < m_NumPalettes; i++)
{
m_PaletteNames.Add(m_File.ReadString(m_File.Read32(m_PaletteHeadersOffset + 0x04 + (uint)(i * 8)), 0));
}
// Read in the frames for each material
m_MaterialData = new Dictionary <string, BTPMaterialData>();
m_Frames = new List <BTPFrameData>();
for (int i = 0; i < m_NumMaterials; i++)
{
m_MaterialNames.Add(m_File.ReadString(m_File.Read32(m_MaterialHeadersOffset + 0x04 + (uint)(i * 12)), 0));
ushort matFrameChanges = m_File.Read16(m_MaterialHeadersOffset + 0x08 + (uint)(i * 12));
ushort startOffsetFrameChanges = m_File.Read16(m_MaterialHeadersOffset + 0x0A + (uint)(i * 12));
int matNumFrames = 0;
for (int j = 0; j < matFrameChanges; j++)
{
ushort frameNum = m_File.Read16((uint)(m_FrameChangesOffset + (startOffsetFrameChanges * 2) + (j * 2)));
// If not the last frame in the sequence, length = (next frame number - current frame number) else,
// length = (number of frames in sequence - current frame number)
int nextFrameNum = (j != (matFrameChanges - 1)) ?
(int)m_File.Read16((uint)(m_FrameChangesOffset + (startOffsetFrameChanges * 2) + ((j + 1) * 2))) : -1;
int length = (nextFrameNum != -1) ? (nextFrameNum - frameNum) : (m_NumFrames - frameNum);
ushort texID = m_File.Read16((uint)(m_FrameTextureIDsOffset + (startOffsetFrameChanges * 2) + (j * 2)));
ushort palID = m_File.Read16((uint)(m_FramePaletteIDsOffset + (startOffsetFrameChanges * 2) + (j * 2)));
AddFrame(matNumFrames, m_Frames.Count, texID, palID, length);
matNumFrames += length;
}
BTPMaterialData matData = new BTPMaterialData(m_MaterialNames[i], matFrameChanges, startOffsetFrameChanges, matNumFrames);
m_MaterialData.Add(m_MaterialNames[i], matData);
}
}